Thee is a link for county certified instructors to sign up for virtual training for SSF training. From the website:
To become a Firearms Safety Program Safety instructor you must first be a verified firearms instructor through a county Sheriff, pursuant to C.R.S. 18-12-202.7. Once that is fulfilled, instructors can register for a Firearms Safety Program Train the Trainer. This training will introduce instructors to the curriculum, establish our teaching and testing guidelines, and protocols. During the Train the Trainer, instructors will be introduced to the Firearms Safety System and learn how to create their account, register students, and enter their course completion status.
Link to the course: https://cpw.state.co.us/specified-semiautomatic-firearms